Abstract
SNARE (soluble N -ethylmaleimide-sensitive factor attachment protein receptor) s play a pivotal role in the membrane fusion between secretory vesicles and target membranes. There are 9 Qa-SNAREs on the plasma membrane of Arabidopsis thalina, and these SNAREs show different expression patterns. Especially, SYP123 is specifically expressed in root hair cells, and is strongly localized to the apical zone of root hair. By contrast, in the root hair cells, SYP132 is ubiquitously localized on the plasma membrane. To investigate the localization mechanism of SYP123 on root hair tip, we searched interacting proteins to SYP123. So far we obtained several candidate of proteins. One of the interacting proteins is SH3P1(SH3 domain-containing protein1) which is known to be involved in the vesicle trafficking,. I will report the expression pattern and localization of SH3P1-GFP in Arabidopsis.
